/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Initialize *this so that either CookOnTheFly or CookByTheBook can be started and ticked
void Initialize ( [ECookMode::Type](API\Editor\UnrealEd\CookOnTheSide\ECookMode__Type) DesiredCookMode, ECookInitializationFlags InCookInitializationFlags, const [FString](API\Runtime\Core\Containers\FString) & OutputDirectoryOverride )